Germination Guide

Click on a species name below to see it's germination tips.
Search for a genus or species by entering specific words or parts of words.
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Baccharis magellanica

K

Sow @ 10°C. Most species for which we suggest this temperature will also germinate at 20°C, but prefer the cooler temperature for sturdy growth.
Baileya multiradiata

A

Sow @ 20°C. Seed germinates within 3 months.
Ballota acetabulosa

A

Sow @ 20°C. Seed germinates within 3 months.
Ballota pseudodictamnus

A

Sow @ 20°C. Seed germinates within 3 months.
Balsalm alpinum

A

Sow @ 20°C. Seed germinates within 3 months.
Balsamorhiza sagittata

J

Sow @4°C for 3 weeks, then place @20°C.
Banksia ericifolia

J

Sow @4°C for 3 weeks, then place @20°C.

*

This species needs special care as described.
heat in oven at 125°C to open cone, then plunge in cold water immediately and soak for 1 day, dry and shake to remove seeds
Baptisia 'Twilight Prairie Blues'

*

This species needs special care as described.

2

Requires darkness.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

A

Sow @ 20°C. Seed germinates within 3 months.
subject to damping off; scarification leads to rotting
Baptisia alba

A

Sow @ 20°C. Seed germinates within 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Baptisia australis

A

Sow @ 20°C. Seed germinates within 3 months.

2

Requires darkness.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

This species needs special care as described.
subject to damping off; scarification leads to rotting
Baptisia indigo

*

This species needs special care as described.
germination enhanced by smoke
Baptisia lactea

A

Sow @ 20°C. Seed germinates within 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Baptisia leucantha

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

This species needs special care as described.
subject to damping off
Baptisia leucophaea

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

This species needs special care as described.
subject to damping off
Baptisia perfoliata

J

Sow @4°C for 3 weeks, then place @20°C.
Baptisia sp. (fresh)

A

Sow @ 20°C. Seed germinates within 3 months.
Baptisia sp. (stored)

A

Sow @ 20°C. Seed germinates within 3 months.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.

*

This species needs special care as described.
soak in boiling water till cool
Baptisia tinctoria

A

Sow @ 20°C. Seed germinates within 3 months.

6

Requires scarification. Nick or rub between sheets of sandpaper.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Begonia grandis

A

Sow @ 20°C. Seed germinates within 3 months.
Begonia grandis 'Alba'

A

Sow @ 20°C. Seed germinates within 3 months.
Begonia sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Begonia sutherlandii

?

We have no information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.

3

Requires light or the small seeds should be surface sown.

A

Sow @ 20°C. Seed germinates within 3 months.
Belamcanda chinensis

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown.
outdoors in autumn
Belamcanda sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Bellevalia forniculata

J

Sow @4°C for 3 weeks, then place @20°C.
Bellevalia hyacinthoides

J

Sow @4°C for 3 weeks, then place @20°C.

*

This species needs special care as described.
subject to damping off
Bellis sp.

A

Sow @ 20°C. Seed germinates within 3 months.
Bellium bellidioides

A

Sow @ 20°C. Seed germinates within 3 months.
Berberis koreana 'Red Tears'

J

Sow @4°C for 3 weeks, then place @20°C.
Berberis thunbergii

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

N

Sow directly in garden.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

This species needs special care as described.
plant 2 cm deep, wash clean 14 days
Berberis thunbergii 'Aurea'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

N

Sow directly in garden.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

This species needs special care as described.
plant 2 cm deep, wash clean 14 days
Berberis thunbergii 'Gold Ring'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

N

Sow directly in garden.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

This species needs special care as described.
plant 2 cm deep, wash clean 14 days
Berberis thunbergii 'Rose Glow'

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

N

Sow directly in garden.

8

Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water daily for 7 days. Discard water.

*

This species needs special care as described.
plant 2 cm deep, wash clean 14 days
Berberis vulgaris

K

Sow @ 10°C. Most species for which we suggest this temperature will also germinate at 20°C, but prefer the cooler temperature for sturdy growth.
Bergenia cordifolia

A

Sow @ 20°C. Seed germinates within 3 months.
Bergenia cordifolia 'Purpurea'

A

Sow @ 20°C. Seed germinates within 3 months.
Berkheya purpurea

A

Sow @ 20°C. Seed germinates within 3 months.
Berlandiera lyrata

A

Sow @ 20°C. Seed germinates within 3 months.
Besseya bullii

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

3

Requires light or the small seeds should be surface sown.
germination enhanced by smoke
Betonica abchasica
Betonica abschasica

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Betonica officinalis

J

Sow @4°C for 3 weeks, then place @20°C.
Betula albo-sinensis

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

3

Requires light or the small seeds should be surface sown.
Betula apoiensis

?

We have no information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.
Betula ermanii

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown.

*

This species needs special care as described.
protect well first winter
Betula glandulosa

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

4

Germination is improved by using GA3.
Betula jacquemontii

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.

3

Requires light or the small seeds should be surface sown.
Betula michauxii

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Betula middendorffii

J

Sow @4°C for 3 weeks, then place @20°C.

3

Requires light or the small seeds should be surface sown.
Betula ovalifolia

G

Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
Betula pendula

J

Sow @4°C for 3 weeks, then place @20°C.
Betula pubescens

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown.
Betula pumila s. str v. depressa

L

Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Betula sp.

J

Sow @4°C for 3 weeks, then place @20°C.
Betula utilis 'Jacquemontii'

A

Sow @ 20°C. Seed germinates within 3 months.

3

Requires light or the small seeds should be surface sown.
Bidens 'Golden Eye'

A

Sow @ 20°C. Seed germinates within 3 months.
Bidens lutea

?

We have no information on the germination of this species. Sometimes we offer an educated guess about which approach you could try. Let us know what is successful.
Bidens polylepsis

J

Sow @4°C for 3 weeks, then place @20°C.
Biscutella laevigata

A

Sow @ 20°C. Seed germinates within 3 months.
Bisserula pelecinus

A

Sow @ 20°C. Seed germinates within 3 months.

6

Requires scarification. Nick or rub between sheets of sandpaper.

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.